I was looking at the following project by Nick Gammon.
This is an awesome project and as always excellently documented by Nick.
I would like to build this project using a custom Arduino "Bare" board running off a 3.6V Li-SOCAL2 battery.
My questions:
Is this feasible?
What SMD FETs should I use.
Many Thanks
Looks totally feasible.
Just make sure you clock your ATmega at 8 MHz or less.
No high requirements on those FETs. See what your favourite supplier has on stock. Just about any logic level PMOS should do (look for RDS, ON values for VGS of ~3V in the data sheet - if those are given it should work for you).
Could someone advise if the following would be a suitable FET
PMV30XPEAR
I don't see anything in the data sheet that suggests it works fine at 3.3V logic levels. It does give 4.5V values which mean it'll do fine with 5V logic.
.
What does the data sheet have to say?
You don't even link to it, and I'm not about to do all your homework.
Hi, thanks for your input - sorry last post was blank ??
I found this FET: FDN338P
FDN338P
#4 used to have content when I replied; you apparently removed this later.
The FDN338P looks suitable to me. Low ON resistance at -2.5V so will switch well at -3.3V.
Hope you know how to deal with SOT23 packages. They're about as large as a grain of rice.
Many thanks for all your assistance.
Yes, I have a homebrew reflow oven I built, so SOT23 no problem.